Mac and Roku LT

won't add server auto or manually
I've had some issues connecting my Macbook and Roku LT. I've ensured the Plex Media Server is running while I attempt the connection. It won't do it automatically so I've tried adding the IP address of my computer into the Plex Channel Preferences. I've even followed the instructions for a Static IP address. But none of these have helped. Any suggestions?

disregard

1- i needed to make some firewall changes and i got a connection

2- i placed this in the wrong category

3- audio is my next issue to tackle!